单词	Raman effect
释义	Raman effect /ˈrɑːmən / noun [mass noun] Physics A change of wavelength exhibited by some of the radiation scattered in a medium. The effect is specific to the molecules which cause it, and so can be used in spectroscopic analysis. Compare with Rayleigh scattering.The Raman effect arises from the inelastic scattering of radiation in the visible region by molecules.... The Raman effect is extremely pronounced in silicon, though it isn't in fiber materials, Paniccia said. Consisting of a silica core covered by a metallic shell, the nanoshells capture and focus the passing light, enhancing the Raman effect.
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